• DOI:10.1093/mnras/stx1182
Corpus ID: 119095351

Gaia 1 and 2. A pair of new Galactic star clusters

@article{Koposov2017Gaia1A,
  title={Gaia 1 and 2. A pair of new Galactic star clusters},
  author={Sergey E. Koposov and V. Belokurov and G. Cambridge and Carnegie Mellon University},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2017},
  volume={470},
  pages={2702-2709}
}

Sergey E. Koposov, V. Belokurov, +1 author Carnegie Mellon University

Published 2017

Physics

Monthly Notices of the Royal Astronomical Society

We present the results of the very first search for faint Milky Way satellites in the Gaia data. Using stellar positions only, we are able to re-discover objects detected in much deeper data as recently as the last couple of years. While we do not identify new prominent ultra-faint dwarf galaxies, we report the discovery of two new star clusters, Gaia 1 and Gaia 2. Gaia 1 is particularly curious, as it is a massive (2.2$\times$10$^4$ M$_\odot$), large ($\sim$9 pc) and nearby (4.6 kpc) cluster… CONTINUE READING

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